Method for preparing highlight colored paint plate by using electron beam radiation curing technology

Abstract

The invention discloses a method for preparing a highlight colored paint plate by using an electron beam radiation curing technology. The method comprises the following steps of: (1) pre-treating a base material: setting the thickness to be 3-50mm, sanding and removing dust; (2) compounding colored paints: preparing an electron beam cured colored paint and preparing an electron beam cured highlight colored paint; (3) performing roller coating and curing: performing accurate roller coating of the electron beam cured colored paint with the coating film thickness of 50-100 microns, and performing radiation curing for 1-2 seconds by using low-energy self-shielding electron beams of which the radiation dose is 50-150kGy; and (4) performing shower coating and curing: performing shower coating of electron beams to cure the highlight colored paint with the coating film thickness of 100-200 microns, and after vacuum coating of a highlight film, performing radiation curing for 1-2 seconds by using the low-energy self-shielding electron beams of which the radiation dose is 50-150kGy. The method has the advantages that the energy consumption is low, the production efficiency is high, the curing speed is high, the processing temperature is low, an inert atmosphere is not needed, a photoinitiator and a photolysis product are not left, and a more environment-friendly effect is achieved.

Description

technical field [0001] The invention relates to a method for preparing a high-gloss color paint board, in particular to a method for preparing a high-gloss color paint board by using electron beam radiation curing technology. Background technique [0002] At present, the high-gloss color paint boards commonly used in the market, such as cabinets, audio-visual cabinets, wardrobes, dining tables and other flat-panel industrial products, are mainly painted with solvent-based coatings. The content of volatile organic compounds (VOC) in this color paint board is high. A large amount of organic solvents are produced during the painting and drying process, which not only causes waste of resources and air pollution, but also slowly releases when it penetrates into the porous substrate, causing long-term harm to indoor occupants. With the increasing shortage of human resources, the intensification of product homogeneity competition and the environmental pressure faced by real enterpr...

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Problems solved by technology

Chinese patent CN101323756A discloses a preparation method of photocatalytic color paint, but the UV curing technology and products require more expensive photoinitiators, the cost of product formulation is higher, and residual photoinitiators and photodecomposition products migrate and volatilize. The unpleasant odor of UV light curing is difficult to penetrate due to the absorption, scattering and reflection of light by pigments, so a large number of expensive special photoinitiators must be used; deep curing and complete curing of colored thick coatings, light curing It is difficult to achieve in the medium; because photocuring can only occur in the coating film, the adhesion between the coating and the substrate is difficult to achieve through the chemical combination of the colored coating and the substrate, so the preparation of excellent adhesion and high gloss by UV curing technology , high hardness, mirror surface, and fullness of the color paint board with good coating effect are difficult to achieve

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